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ubuntucveUbuntu.comUB:CVE-2016-5300
HistoryJun 06, 2016 - 12:00 a.m.

CVE-2016-5300

2016-06-0600:00:00
ubuntu.com
ubuntu.com
14

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.007 Low

EPSS

Percentile

81.0%

The XML parser in Expat does not use sufficient entropy for hash
initialization, which allows context-dependent attackers to cause a denial
of service (CPU consumption) via crafted identifiers in an XML document.
NOTE: this vulnerability exists because of an incomplete fix for
CVE-2012-0876.

Notes

Author Note
ebarretto tla uses system expat as of 1.3.5+dfsg-15
rodrigo-zaiden it is also an incomplete fix for CVE-2012-6702, that followed CVE-2012-0876. libxmltok is not affected by any of these CVEs as it doesn’t have the hash functions.

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.007 Low

EPSS

Percentile

81.0%